Settlement of PIT for 2025 on time is the obligation of every taxpayer. Exceeding the statutory deadline for settling taxes may result in serious consequences, including criminal fiscal liability. Therefore, it is worth ensuring that the formalities are completed, even if the declaration contains errors or is incomplete – it is better to submit it on time than not at all.
See also: Many taxpayers do not know about this. They give more money to the tax office
Pursuant to the Personal Income Tax Act, which regulates tax settlements not only in 2026, millions of taxpayers in Poland are obliged to settle their returns between February 15 and April 30.
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In 2026, the last day of April falls on Thursday, so there is no extension to May. This applies to all forms, such as PIT-36, PIT-37, PIT-28 or PIT-38.
When to settle PIT 2026 – deadline April 30 and exception for PIT-16A
As pit.pl explains, an exception to the general rules for taxpayers is a group of entrepreneurs who settle their taxes using a tax card (PIT-16A).
When should the PIT-16A declaration be submitted? The news may disappoint entrepreneurs because the return must be submitted by the end of February of the year following the tax year. In practice, this means that PIT for 2025 must be submitted to the tax office by February 28, 2026. If February 28 falls on a holiday, the deadline is moved to the next business day.
See also: Why are so many Poles afraid of settling PIT? Here are the most common mistakes
As pit.pl points out, if you fail to submit the declaration on time, you can use the institution of active regret. It is an independent notification of the tax office about committing an offense, which allows you to avoid punishment. You can also submit an active complaint online, via the e-Tax Office.
It is worth remembering that when paying taxes, you can take advantage of a wide range of tax reliefs. In addition to popular and often chosen deductions – e.g. child tax relief or thermal modernization tax relief – there are also several that most taxpayers forget about.
